130 citations · 305 across the 6 of their papers we have counts for
6 papers
Optical conductivity of the Holstein polaron
Glen L. Goodvin, Andrey S. Mishchenko, Mona Berciu
The Momentum Average approximation is used to derive a new kind of non-perturbational analytical expression for the optical conductivity (OC) of a Holstein polaron at zero temperat…
The end points in the dispersion of Holstein polarons
Glen L. Goodvin, Mona Berciu
We investigate the existence of end points in the dispersion of Holstein polarons in various dimensions, using the Momentum Average approximation which has proved to be very accura…
Elusive electron-phonon coupling in quantitative analyses of the spectral function
C. N. Veenstra, G. L. Goodvin, M. Berciu +1
We examine multiple techniques for extracting information from angle-resolved photoemission spectroscopy (ARPES) data, and test them against simulated spectral functions for electr…
Momentum average approximation for models with electron-phonon coupling dependent on the phonon momentum
Glen L. Goodvin, Mona Berciu
We generalize the momentum average (MA) approximation to study the properties of models with momentum-dependent electron-phonon coupling. As in the case of the application of the o…
Systematic improvement of the Momentum Average approximation for the Green's function of a Holstein polaron
Mona Berciu, Glen L. Goodvin
We show how to systematically improve the Momentum Average (MA)approximation for the Green's function of a Holstein polaron, bysystematically improving the accuracy of the self-ene…
The Green's Function of the Holstein Polaron
Glen L. Goodvin, Mona Berciu, George A. Sawatzky
We present a novel, highly efficient yet accurate analytical approximation for the Green's function of a Holstein polaron. It is obtained by summing all the self-energy diagrams, b…